The goal of the research is to define the indicators of the muscle function, fatigue and recovery for the shin stretchers and benders, who are LCA students and soldiers, during the isokinetic load. Two groups were investigated: 17 healthy underclassmen from the Lithuanian Military Academy at the age of 18,8±0,4, and 20 healthy soldiers from the Great Lithuanian Etmon Jonusas Radvila training flock at the age of 19,8±1,1. The investigative were tested using the Biodex Medical System, the equipment allocated to the testing of human bone-muscle and rehabilitation. The testing was executed in the regime according to the specially created protocol. The maximum power of the right leg shin of the stretchers-benders and the power at the maximum speed when the fixed speed is 180 l/s was recorded. These parameters were registered before the load while doing 3 stretches and bends, and a 5-minute recovery period after the load doing 3 stretches and bends. In order to evoke tiredness 100 load of the stretching and bending was used at the fixed speed of 180 l/s. The achieved results revealed, that the benders of the first (LCA students) and the second (the soldiers) groups get less tired during the isokinetic load than stretchers. The maximum power of the first and the second group shin stretchers did not recover after a 5-minute period rest from the controlling value, and the maximum power of the shin benders recovered completely in comparion to the initial value. The muscle power of the... [to full text]